Designed and manufactured in Quebec since 1986
sales@patt-tech.com

Patt Precision Machining

Precision machining and surface grinding in Quebec

External job-shop capacity for large grinding, wire EDM, CNC machining and turning—supported by drafting, CAM, inspection and three decades of surface-engineering experience.

Send a machining RFQ See plasma nitriding
Precision machining spindle and cutting tool
3,000 kgGrinding and EDM workpiece capacity
1,500 mmDocumented grinding envelope length
2,000 mmTurning length between centres
HardHardened-steel specialization
Engineering note: The ±0.001 mm grinding capability previously published by Patt applies only to suitable geometry, material, size and inspection conditions and must be confirmed during quotation.

Core shop capabilities

A focused offer for demanding components.

Patt is best positioned for large or heavy work, hardened materials, extrusion tooling, repair and jobs that combine machining with heat treatment or nitriding.

GRIND

Large surface grinding

Tight flatness, parallelism, thickness and surface-finish control on workpieces up to 3,000 kg.

Explore
EDM

Wire EDM

Complex profiles in conductive hardened steels, stainless alloys, titanium, nickel alloys and carbide.

Explore
CNC

CNC milling and turning

Small-to-medium runs, heavy parts, tooling, repair work and process-critical components.

Explore

Precision surface grinding is a Patt specialty

Patt specializes in grinding components where flatness, parallelism, thickness and surface finish determine how the assembly performs. Work includes hardened-steel tooling, plates, mating faces and precision machine components. Large surface-grinding capacity accommodates workpieces up to 1,500 × 1,000 × 900 mm and 3,000 kg.

Grinding can be coordinated with CNC machining, wire EDM and plasma nitriding within the same project. Identifying the reference faces, stock allowance, material condition and final inspection requirements at quotation helps establish the right machining and treatment sequence. Send a drawing with the critical flatness, parallelism and finish requirements for a grinding quote.

Request a grinding quote

Why Patt for difficult work

Machining informed by heat treatment and service failure.

Patt’s machinists, designers and programmers regularly work through tolerance stacks, fixturing, heat-treatment distortion, material substitutions and post-treatment finishing.

  • 2D/3D drafting and production documentation
  • Three- and four-axis CAM with collision-checked simulation
  • CMM and optical inspection
  • Material certificates and hardness reporting by scope
Dimensional inspection of a machined rotary filtration disc
Precision machining and dimensional inspection

Dies, adapters and melt-transfer pipework

Patt machines the components that connect the extrusion line: dies, adapters, crossover pipes, elbows, flanges and breaker plates. We bring machining and surface-engineering experience together to address melt passages, mating faces and the interfaces between extruder, filter and downstream tooling.

Low-temperature nitrided stainless strand die · internal flow passages
Low-temperature nitrided stainless strand die · internal flow passages
Strand die · die face and strand openings
Strand die · die face and strand openings

Tooling built around the line

Dies, adapters and pipework capabilities
ComponentDesign and machining focus
Dies and die componentsStrand dies, melt-distribution passages, die faces and mating surfaces. Material and surface treatment selected for wear, corrosion and cleaning requirements.
Adapters and flangesTransitions between extruder, filtration system and die, with coordinated bore geometry, sealing faces and bolt patterns.
Crossover pipes and elbowsMelt-transfer routes adapted to the installation layout, connection orientation and heating arrangement. Smooth transitions and access for cleaning are part of the design review.
Breaker platesMachined flow openings and screen-support surfaces, including waved geometries that match wave-shaped screen packs.

Coordinate tooling, steel and surface treatment

Send a drawing or installation layout with the polymer, temperature, pressure, connections and required quantities. Patt can review machining, tooling-steel selection and plasma nitriding together. The stainless strand die shown above is an example of low-temperature nitriding applied to extrusion tooling.

Explore Patt tooling steels

precision-machining

Documented specifications

Documented machining envelope · final suitability is confirmed from the drawing
ProcessMachine/travel envelopeMaximum workpieceWeight
Surface grinding1,500 × 1,000 × 900 mmDrawing review required3,000 kg
Wire EDM800 × 600 × 505 mm1,250 × 1,020 × 505 mm3,000 kg
CNC milling840 × 840 × 760 mm940 × 940 × 1,000 mm1,500 kg
Turning670 mm swing2,000 mm between centresDrawing review required

Specifications are configuration-dependent and are confirmed during application review.

Related products and technical guidance

Send your machining requirements

Send your drawings or CAD files, material, quantity, critical dimensions and tolerances, surface finish, heat-treatment requirements and required delivery date. Identify any inspection or material-certification requirements.

Request a machining quote